c# capture aero form transparency

c# class for winforms I am trying to capture windows form transparency on a windows aero theme. I am sending a sample image of what I am trying to do. There are three samples in the image. 1. I know how to do it and it will not be hard. Have to take the active form and fill a white rectangle under the window. It will clean up the title bar like the first example. 2. The title bar is transparent I am not sure how to do this. The checker pattern under it is the canvas and not a part of the image. 3. I have a soulution of course for this and it is not a part of the progect. The first two are the only ones part of this project. I need a way to capture these with the window handle or the active window. I have the capture part finsihed just need a way to get the transparency from the form. Thanks and good luck....